Evidence map›Paper›PMID 19523771›Full record

ArticlePsychoneuroendocrinology2009

Puberty, steroids and GABA(A) receptor plasticity.

Sheryl S Smith, Chiye Aoki, Hui Shen

Abstract read
In one paragraph

Article in Psychoneuroendocrinology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 2 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Cys-loop receptors on cannabinoids: All high?Frontiers in physiology · 2022
    Pooled it
  3. Trial
  4. Article
  5. GABA system as the cause and effect in early development.Neuroscience and biobehavioral reviews · 2024
    Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. α4βδ-GABAJournal of neuroscience research · 2018
    Article
  13. Comparison of αβδ and αβγ GABAPharmacological research · 2018
    Review
  14. α4-GABAMolecular and cellular neurosciences · 2018
    Article
  15. Sex-dependent effects of nicotine on the developing brain.Journal of neuroscience research · 2017
    Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Sheryl S SmithDepartment of Physiology and Pharmacology, SUNY Downstate Medical Center, 450 Clarkson Ave., Brooklyn, NY 11203, USA. Sheryl.smith@downstate.edu
Chiye Aoki
Hui Shen
SUNY Downstate Health Sciences University · USNew York University · US

Funding

Vision Core Grant- Design and Fabrication ModuleP30EY013079 · NEI · NEW YORK UNIVERSITY · PI ANGELAKI, DORA · 2000 to 2025
$14.2M
BP-ENDURE at Hunter and NYUR25NS080686 · NINDS · HUNTER COLLEGE · PI Nesha Star Burghardt, GLENN E SCHAFE · 2012 to 2026
$9.2M
STEROIDS AND GABA:PHYSIOLOGY OF RECEPTOR SUBUNIT CHANGESR01DA009618 · NIDA · SUNY DOWNSTATE MEDICAL CENTER · PI SMITH, SHERYL S · 1995 to 2010
$2.7M
ALCOHOL, GABA AND HORMONES: PHYSIOLOGY OF SUBUNIT CHANGER01AA012958 · NIAAA · SUNY DOWNSTATE MEDICAL CENTER · PI SMITH, SHERYL S · 2000 to 2010
$2.5M
SYNAPTOGENESIS IN THE CEREBRAL CORTEXR01NS041091 · NINDS · NEW YORK UNIVERSITY · PI AOKI, CHIYE J · 2000 to 2003
$1.4M
Chemically specified synaptogenesis in the visual cortexR01EY013145 · NEI · NEW YORK UNIVERSITY · PI AOKI, CHIYE J · 2001 to 2004
$1.1M
NEI NIH HHS P30 EY013079NEI NIH HHS R01 EY013145NIAAA NIH HHS AA12958NIAAA NIH HHS R01 AA012958NIDA NIH HHS DA09618NIDA NIH HHS R01 DA009618NINDS NIH HHS R01 NS041091NINDS NIH HHS R25 NS080686
6 · The paper itself

Abstract

GABA(A) receptors (GABAR) mediate most inhibition in the CNS and are also a target for neuroactive steroids such as 3alpha,5[alpha]beta-THP (3alphaOH-5[alpha]beta-OH-pregnan-20-one or [allo]pregnanolone). Although these steroids robustly enhance current gated by alpha1beta2delta GABAR, we have shown that 3alpha,5[alpha]beta-THP effects at recombinant alpha4beta2delta GABAR depend on the direction of Cl(-) flux, where the steroid increases outward flux, but decreases inward flux through the receptor. This polarity-dependent inhibition of alpha4beta2delta GABAR resulted from an increase in the rate and extent of rapid desensitization of the receptor, recorded from recombinant receptors expressed in HEK-293 cells with whole cell voltage clamp techniques. This inhibitory effect of 3alpha,5[alpha]beta-THP was not observed at other receptor subtypes, suggesting it was selective for alpha4beta2delta GABAR. Furthermore, it was prevented by a selective mutation of basic residue arginine 353 in the intracellular loop of the receptor, suggesting that this might be a putative chloride modulatory site. Expression of alpha4betadelta GABAR increases markedly at extrasynaptic sites at the onset of puberty in female mice. At this time, 3alpha,5[alpha]beta-THP decreased the inhibitory tonic current, recorded with perforated patch techniques to maintain the physiological Cl(-) gradient. By decreasing this shunting inhibition, 3alpha,5[alpha]beta-THP increased the excitability of CA1 hippocampal pyramidal cells at puberty. These effects of the steroid were opposite to those observed before puberty when 3alpha,5[alpha]beta-THP reduced neuronal excitability as a pre-synaptic effect. Behaviorally, the excitatory effect of 3alpha,5[alpha]beta-THP was reflected as an increase in anxiety at the onset of puberty in female mice. Taken together, these findings suggest that the emergence of alpha4beta2delta GABAR at the onset of puberty reverses the effect of a stress steroid. These findings may be relevant for the mood swings and increased response to stressful events reported in adolescence.

Indexed as

AnimalsAnxietyCA1 Region, HippocampalCorticosteroneFemaleFinasterideGABA AgentsHumansMembrane PotentialsMiceMice, TransgenicNeural InhibitionNeuronal PlasticityNeurotransmitter AgentsPeriaqueductal GrayPregnanoloneCorticosteroneFinasterideGABA AgentsNeurotransmitter Agentspregnane-20-onePregnanoloneProgesteroneReceptors, GABA-A

Identifiers

PMID19523771
PMCPMC2794901
OpenAlexW2057285011

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.